Quit running back-and-forth to the tool box and instead keep your entire set of wrenches on you with a set of Carbonlite Carbon Fiber Wrenches. Made in the USA from 3/8" high-strength carbon fiber, these durable wrenches feature stainless steel teeth, both standard and metric sizes on the same wrench — 3/8", 7/16", ½", 9/16", and 5/8" and 10mm, 12mm, 13mm, 14mm, and 15mm, respectively — and weigh just 6.7 oz in total, or less than a large steel wrench weighs on its own.